<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>
            {% block title %}
            {% endblock %}
        </title>
        {% block extCSS %}
        {% endblock %}
        {% block extJS %}
        {% endblock %}
    </head>
    {% block indexbody %}
    {% endblock %}
    <body>
    {% block content %}
    {% endblock %}
    {% block footer %}
    {% endblock %}
    </body>
</html>